circular Movement

[DR33]

Can anyone help me with this problem plz..

I included the picture of the problem below..

m = 0.4 Kg

[DR33]

Sorry, I just realized it's in wrong sec. u can still reply :)

[HallsofIvy]

I looked at the picture but what do you want help with?

What is the question?

Drawing a line from the mass to the center of rotation gives two right triangles with hypotenuse of length 1 and one leg of length .8m.
You can use the Pythagorean theorem to find the radius of rotation and then calculate both angular velocity and centripetal force. I don't know what else you want since you did not ask a question.